US8520017B2 - System and method for managing and displaying medical images - Google Patents

System and method for managing and displaying medical images Download PDF

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US8520017B2
US8520017B2 US11/118,350 US11835005A US8520017B2 US 8520017 B2 US8520017 B2 US 8520017B2 US 11835005 A US11835005 A US 11835005A US 8520017 B2 US8520017 B2 US 8520017B2
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image
display mode
medical images
data
medical
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US20050251020A1 (en
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Takashi Kondo
Kenichi Niwa
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Canon Medical Systems Corp
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Toshiba Corp
Toshiba Medical Systems Corp
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    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • G16H30/40—ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS

Definitions

  • the present invention relates to a system for storing and displaying images formed from an image storage server for storing image data and an image display unit connected to the image storage server via a network.
  • Medical imaging diagnosis is the process in which a doctor makes a diagnosis based on medical images (i.e., the doctor interprets the medical images) developed on a film or output on an image display unit.
  • the medical images to be interpreted are captured by various modalities (i.e., medical imaging devices), such as computed tomography (CT), computed radiography (CR), magnetic resonance (MR), and digital radiography (DR).
  • CT computed tomography
  • CR computed radiography
  • MR magnetic resonance
  • DR digital radiography
  • PACS picture archiving and communication system
  • the image storage server stores, in advance, medical images from various modalities and relates the medical images from each modality with a predetermined display mode (layout) for a display screen that is most appropriate for interpreting the medical image obtained by the particular modality.
  • display mode display mode
  • the best display mode for the selected modality is also selected to display medial images on the PACS image display unit (for example, refer to Japanese-Unexamined Patent Application Publication No. 4-49945).
  • the user of the PACS can categorize the CT images according to the different regions of the body, such as the head, the chest region, and the abdominal region. Then the display mode for the CT images of each category may be changed on the image display unit.
  • the identification numbers of the categorized medical images must be stored in a database of the image data server. Also, the identification numbers of the medical images must be displayed on the client viewer. The transmission of these identification numbers has been adding load to the network.
  • a display capable of efficiently displaying the images of a patient captured by the plurality of modalities on the same screen.
  • the optimal display mode for a single modality could be selected.
  • the medical images captured by the plurality of modalities overlapped each other on the screen in the initial display mode.
  • the display mode had to be changed at the image display unit to a mode that facilitated the interpretation of the medical images. This operation causes the working efficiency for the user to be reduced.
  • an application for changing the mode has to be installed in the client viewer.
  • image data such as computer aided diagnosis or detection (CAD) data to display similar images on the screen of the client viewer or to box off a predetermined image and line up similar images next to the boxed off image.
  • CAD computer aided diagnosis or detection
  • the present invention has taken into consideration the above-described problems and provides a system and method for displaying and managing medical images such that the medical images are displayed in an appropriate display mode at the initial settings and the working efficiency for the user is improved.
  • the present invention provides a system and method for displaying and managing medical images that do not require medical images to be categorized and stored according to identification numbers and that is capable of reducing the load on the network.
  • a system for managing and displaying medical images comprises an associating unit for associating image file, including a medical image data, with a display mode data held at least a screen division and a image segment including a medical image, and an image display unit for displaying the medical image data included the image file as the medical image on the screen in accordance with the display mode data associating with the image file.
  • a method for managing and displaying medical images includes steps of (A) memorizing an image file including a medical image data, (B) associating the image file with a display mode data held at least a screen division and an image segment including the medical image, and (C) displaying the medical image data included the image file as a medical image on a screen in accordance with the display mode data associating with the image file.
  • FIG. 1 is a schematic view of the entire system for managing and displaying medical images
  • FIG. 2 illustrates a sample of a structure of a DICOM file
  • FIG. 3 is a block diagram illustrating an image storage server according to a first embodiment of the present invention
  • FIG. 4 is a flow chart illustrating a method for managing and displaying medical images according to an embodiment of the present invention
  • FIG. 5 illustrates a sample of a display mode of the CT images after the display mode has been changed on the client viewer screen
  • FIG. 6 illustrates a sample of a display mode data as a table
  • FIG. 7 is a flow chart of a method for managing and displaying medical images according to another embodiment of the present invention.
  • FIG. 8 illustrates a display mode of medical images that has been changed on a client viewer screen
  • FIG. 9 illustrates a sample of a display mode of CT images, MR images and CR image after the display mode has been changed on the client viewer screen
  • FIG. 10A and FIG. 10B illustrate a sample of the display mode data as a table
  • FIG. 11 illustrates a sample of the display mode data I as a table
  • FIG. 12 is a schematic view of the entire system for managing and displaying medical images
  • FIG. 13 is a block diagram illustrating the image storage server according to a second embodiment of the present invention.
  • FIG. 14 illustrated a sample of the display mode data I as a table
  • FIG. 15 is a flow chart illustrating a method for managing and displaying medical images according to an embodiment of the present invention.
  • FIG. 16 illustrates a flow chart of a method for managing and displaying medical images according to another embodiment of the present invention using the system 10 A for managing and displaying medical images.
  • FIGS. 1 and 3 illustrate a system for managing and displaying medical images according to a first embodiment of the present invention.
  • FIG. 1 illustrates the entire system for managing and displaying the medical images.
  • medical facilities H 1 , H 2 , . . . , H n are connected via a network N so that they are capable of transmitting data with each other.
  • the network N may be established by a wire connection, such as a public line including an integrated services digital network (ISDN) or a dedicated line, or an open network, such as the Internet.
  • ISDN integrated services digital network
  • the medical facility H 1 includes the modality (medical imaging devices) 9 of the singular or the plural and a system 10 for managing and displaying medical images according to the present invention.
  • the modality 9 is for generating Digital Imaging and Communication in Medicine (DICOM) files, which are a type of image files, from medical images, such as bitmap files, made by imaging.
  • DICOM Digital Imaging and Communication in Medicine
  • the modality 9 is, for example, a computed tomography (CT) device 9 a , a magnetic resonance (MR) device 9 b , a computed radiography (CR) device 9 c , or a digital radiography (DR) device 9 d.
  • CT computed tomography
  • MR magnetic resonance
  • CR computed radiography
  • DR digital radiography
  • the system 10 for managing and displaying medical images includes an image storage server 12 for obtaining the DICOM files, generated at the modality 9 , and for storing and managing these DICOM files, a client viewer 13 that is an image display unit for displaying the medical images by loading the DICOM files from the image storage server 12 , and an access router 14 that is a communication unit for transmitting data between the medical facilities H 1 and H 2 via the network N.
  • a medical image data management system such as a picture archiving and communication system (PACS) is established by connecting the image storage server 12 of a medical facility, such as a hospital, and the client viewer 13 capable of displaying the images, such as a workstation, via a network.
  • PACS picture archiving and communication system
  • the DICOM files do not necessarily have to be generated at the modality 9 and, instead, may be generated at, for example, the image storage server 12 .
  • one client viewer 13 may be provided for the medical facility H 1 or a plurality of client viewers may be provided.
  • the client viewer 13 includes a Web browser (not shown in the drawing) and a graphical user interface (GUI) (also not shown in the drawing).
  • the Web browser is an application software program for loading the DICOM files and for analyzing the display mode of the medical images and displaying the medical images in accordance with the display mode.
  • the GUI is for displaying graphical elements, such as icons and buttons, corresponding to commands related to image display and processing, such as the number of image segments and a type of image processing, and for operating these graphical elements with a pointing device, such as a mouse.
  • the DICOM files are generated at the modality 9 in accordance with the DICOM standard.
  • the DICOM standard is a standard established in the United States for sharing medical data.
  • FIG. 2 illustrates a sample of a structure of a DICOM file.
  • a DICOM file is a collection of data elements ( 1 ), ( 2 ), . . . , (n).
  • Each data element includes a standard tag (group number and element number) and that tag data (data length and tag data).
  • the tag data is attribute data related to the medical images, such as data about a patient, an imaging condition, an image, an display, and so on.
  • the patient data includes data that identifies the patient, such as a patient's name ID (IDentification) and a birth date;
  • the imaging condition data includes data on the type of the medical image, such as a primary or a secondary image, an imaged region of the body, and an imaging condition, such as a X-ray tube current value and voltage value, of when imaging was carried out by the modality 9 ;
  • the image data includes data on the examination ID and the type of modality 9 ;
  • the display information includes information on the contrast of the image, the serial order and arrangement of the image, and the category number (the group ID for the group the medical image belongs to); and other data includes the file code of the DICOM file.
  • a tag and that tag data are embedded at the data patient demographic data area which a DICOM file, generated at the modality 9 , composed of.
  • a tag which expresses the patient's name is “(0010,0010)” and that tag data is “TOKKYO TARO”
  • a tag which expresses the patient's ID is “(aaaa,0001)” and that tag data “123456789-0”
  • a tag which expresses the patient's birth date is “(bbbb,0002)” and that tag data is “1942/12/25”
  • a tag which expresses the kind of the modality 9 is “(cccc,0003)” and that tag data is “CT”
  • a tag which expresses the kind of a image ID is “(dddd,0004)” and that tag data is “1111.2222.3333.4444”
  • a tag which expresses the comment of examination is “(eeee,0005)”
  • the modality 9 , the image storage server 12 , the client viewer 13 , and the access router 14 , illustrated in FIG. 1 , are capable of transmitting data between each other via a local area network (LAN) 15 , which is a network used inside the medical facility H 1 .
  • LAN local area network
  • the DICOM files, generated at the modality 9 may be recorded on a recording medium, such as a flexible disk (FD), a compact disk read only memory (CD-ROM), or a flash memory.
  • a recording medium such as a flexible disk (FD), a compact disk read only memory (CD-ROM), or a flash memory.
  • the image storage server 12 can read out the DICOM files from these recording media.
  • FIG. 3 is a block diagram illustrating the image storage server 12 .
  • the image storage server 12 illustrated in FIG. 3 , includes an image file receiving unit 21 for receiving the DICOM files, generated at the modality 9 via the LAN 15 , an image file storage unit 22 for storing therein the DICOM files received by the image file receiving unit 21 , a Web service unit 23 for sending DICOM files, stored in the image file storage unit 22 , in accordance with a request from a Web browser (not shown in the drawing) of the client viewer 13 , and an associating unit 24 for associating the image files, including the medical image data, with the display mode data including at least a screen division and an image segment including the medical images.
  • the associating unit 24 includes, for example a display mode data receiving unit 25 for receiving display mode data (data on the display mode of the medical images) from the client viewer 13 or viewer (not shown in the drawing) in medical facilities H 2 , and a display mode data embedding unit 26 for embedding the display mode data, received from the display mode data receiving unit 25 .
  • the display mode data is embedded into the DICOM files.
  • associating is not limited to embed the display mode data into the DICOM files.
  • the image file storage unit 22 stores DICOM files F with embedded display mode data, generated at the display mode data embedding unit 26 .
  • the file storage unit 22 also stores DICOM files F with embedded display mode data.
  • the image storage server 12 retrieves these DICOM files F from the file storage unit 22 , in accordance with a request from the client viewer 13 .
  • the Web service unit 23 sends these DICOM files F to the client viewer 13 via the LAN 15 and to other medical facilities H 2 via the network N.
  • the display mode data of these images may be embedded into the DICOM files at the modality 9 .
  • the modality used in the method is the CT device 9 a .
  • the modality of the method is not limited to a CT device.
  • DICOM files are composed of a blank area, a patient demographic data area, and an image data area.
  • the patient demographic data area is composed of a collection of data elements.
  • Each data element includes tags and that tag data conforming to the DICOM standard.
  • tag and data length are embedded as binary data and tag data is embedded as text data (character string) or binary data.
  • a controlling unit controls the system to send the DICOM files to the image file receiving unit 21 of the image storage server 12 , illustrated in FIG. 3 , via the LAN 15 and to store the DICOM files in the image file storage unit 22 (Step S 1 ).
  • the DICOM files generated by the CT device 9 a may be recorded on a recording medium, such as a FD, a CD-ROM, or a flash memory and the image storage server 12 may read out the DICOM files from the recording medium.
  • a user such as a doctor or a nurse, turns on the power to start up the client viewer 13 .
  • the user operates a pointing device (not shown in the drawing), such as a mouse, to request for displaying the medical images about the patient M that is a certain patient.
  • DICOM files, including the medical image data, about the patient M is retrieved from the image file storage unit 22 , stored in Step S 1 . These DICOM files are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 . If DICOM files, including the CT image data, about the patient M are stored at the image file storage unit 22 , these DICOM files are sent to the Web browser of the client viewer 13 . Using the DICOM files sent from the image storage server 12 , the CT images of the patient M are displayed on the client viewer 13 screen (Step S 2 ).
  • the user operates the pointing device, i.e., mouse, to organize the CT images through the GUI in an easily viewable arrangement.
  • the user changes at least one of the display modes, i.e., the screen division, the image segment including the image, whether or not the image is included in a stack, or the order of the image in the stack.
  • the display modes i.e., the screen division, the image segment including the image, whether or not the image is included in a stack, or the order of the image in the stack.
  • the user may change the display mode to categorize the captured CT images according to the body regions.
  • FIG. 5 illustrates a sample of a display mode of the CT images after the display mode has been changed on the client viewer 13 screen.
  • FIG. 5 illustrates the client viewer 13 screen after the display mode of CT images P CT of the patient M has been changed in Step S 2 such that the user can easily view the CT images.
  • CT images P CT-1, P CT-2, P CT-3, P CT-4 , P CT-5 , and P CT-6 there are six CT images as the CT images of the patient M, i.e., CT images P CT-1, P CT-2, P CT-3, P CT-4 , P CT-5 , and P CT-6 .
  • the display screen as illustrated in FIG. 5 , is divided into “2 ⁇ 2” segments.
  • the “(1,1)” segment displays the CT image P CT-1 without stacking the image.
  • the “(1,2)” segment of the display screen divided into “2 ⁇ 2” segments displays the CT image P CT-2 as the first image in a stack.
  • the second image in the stack is the CT image P CT-3 .
  • the “(2,1)” segment of the display screen divided into “2 ⁇ 2” segments displays the CT image P CT-4 as the first image in a stack.
  • the second image in the stack is the CT image P CT-5 and the third image in the stack is the CT image P CT-6 .
  • Step S 3 the user carries out an operation to output the display mode data, such as clicking an output button on the client viewer 13 screen.
  • Outputting the display mode data sets the display mode on the client viewer 13 screen (Step S 3 ).
  • the display mode data on every image is sent from the client viewer 13 to the display mode data I receiving unit 25 of the image storage server 12 via the LAN 15 .
  • the display mode data I CT-1 , I CT-2 , I CT-3 , I CT-4 , I CT-5 , and I CT-6 are the display mode data I.
  • FIG. 6 illustrates a sample of the display mode data I as a table.
  • FIG. 6 illustrates the display mode data I CT-1 , I CT-2 , I CT-3 , I CT-4 , I CT-5 and I CT-6 , after the display mode for the screen of CT images P CT-1 , P CT-2 , P CT-3 , P CT-4 , P CT-5 , and P CT-6 are set as illustrated in FIG. 5 .
  • the display mode data I CT-1 , I CT-2 , I CT-3 , I CT-4 , I CT-5 , and I CT-6 include the screen division, the image segment including the image, whether or not the image is included in a stack, and the order of the image in the stack.
  • the display mode data I CT-1 to conform to CT image P CT-1 is “2 ⁇ 2, (1,1), S0”. That display mode data I CT-1 represents that the screen division is “2 ⁇ 2”, the image segment including the image P CT-1 is “(1,1)”, and the image P CT-1 is not included in a stack, respectively.
  • the display mode data I CT-2 to conform to CT image P CT-2 is “2 ⁇ 2, (1,2), S1”. That display mode data I CT-2 represents that the screen division is “2 ⁇ 2,” the image segment including the image P CT-2 is “(1,2)”, and the image P CT-2 is the first image in the stack, respectively.
  • the display mode data I CT-3 to conform to CT image P CT-3 is “2 ⁇ 2, (1,2), S2”.
  • That display mode data I CT-3 represents that the screen division is “2 ⁇ 2,” the image segment including the image P CT-3 is “(1,2)”, and the image P CT-3 is the second image in the stack, respectively.
  • the display mode data I CT-4 to conform to CT image P CT-4 is “2 ⁇ 2, (2,1), S1”. That display mode data I CT-4 represents that the screen division is “2 ⁇ 2,” the image segment including the image P CT-4 is “(2,1)”, and the image P CT-4 is the first image in the stack, respectively.
  • the display mode data I CT-5 to conform to CT image P CT-5 is “2 ⁇ 2, (2,1), S2”.
  • That display date I CT-5 represents that the screen division is “2 ⁇ 2,” the image segment including the image P CT-5 is “(2,1)”, and the image P CT-5 is the second image in the stack, respectively.
  • the display mode data I CT-6 to conform to CT image P CT-6 “2 ⁇ 2, (2,1), S3”. That display mode data I CT-6 represents that the screen division is “2 ⁇ 2,” the image segment including the image P CT-6 is “(2,1)”, and the image P CT-6 is the third image in the stack, respectively.
  • the display mode data I sent from the client viewer 13 , illustrated in FIG. 3 is received by the display mode data receiving unit 25 of the image storage server 12 (Step S 4 ). Then this data is sent to the display mode data embedding unit 26 .
  • the display mode data I, received in Step S 4 is embedded into each DICOM file to generate DICOM files F with embedded display mode data (Step S 5 ).
  • tag and data length are embedded as binary data and tag data is embedded as text data (character string) or binary data.
  • FIG. 7 illustrates a sample of the structure of a DICOM file F with embedded display mode data.
  • FIG. 7 illustrates DICOM files F with embedded display mode embedded into the patient demographic data area included each DICOM file.
  • the display mode data I is embedded into the patient demographic data area included each DICOM File as tag data to conform to the standard tag.
  • a tag data to conform to the standard tag, generated at the modality 9 is a blank, because use frequency isn't so large in that that tag data in management.
  • the display mode data I is embedded into the patient demographic data area as tag data to conform to the standard tag.
  • an area to be embedded is not limited to the patient demographic data area.
  • the display mode data I can be embedded into, for example, the patient demographic data area as a private tag which can be set up freely.
  • the display mode data I is embedded into, for example, a blank area included in each DICOM File.
  • the DICOM files F with embedded display mode data, generated at the display mode data embedding unit 26 , are stored in the image file storage unit 22 of the image storage server 12 , illustrated in FIG. 3 (Step S 6 ).
  • the image storage server 12 enters a stand-by mode and waits for a request for displaying the medical images.
  • the image storage server 12 determines whether or not a request for displaying the medical images is made from the client viewer 13 (Step S 7 ).
  • the request for displaying the medical images may be made from the client viewer 13 in the medical facility H 1 , from other client viewers in the medical facility H 1 , or from other medical facilities H 2 connected by the network N.
  • Step S 7 If an answer in Step S 7 is determined to be “YES,”i.e., a request is made from the client viewer 13 to display the medical images about the patient M, the DICOM files F for the patient M with embedded display mode about the patient M is retrieved from the image file storage unit 22 , stored in Step S 6 . These DICOM files F are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the DICOM files F CT-1 , F CT-2 , F CT-3 , F CT-4 , F CT-5 , and F CT-6 with embedded display mode data I CT-1 , I CT-2 , I CT-3 , I CT-4 , I CT-5 , and I CT-6 stored in the image file storage unit 22 respectively
  • the DICOM files F CT-1 , F CT-2 , F CT-3 , F CT-4 , F CT-5 , and F CT-6 are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the CT images P CT-1 , P CT-2 , P CT-3 , P CT-4 , P CT-5 , and P CT-6 of the patient M are displayed in accordance with the display mode data I CT-1 , I CT-2 , I CT-3 , I CT-4 , I CT-5 , and I CT-6 , respectively.
  • the CT images P CT-1 , P CT-2 , P CT-3 , P CT-4 , P CT-5 , and P CT-6 of the patient M are initially displayed on the client viewer 13 screen in a display mode illustrated in FIG. 5 (Step S 8 ).
  • the user may operate the CT images P CT-1 , P CT-2 , P CT-3 , P CT-4 , P CT-5 , and P CT-6 of the patient M, displayed in Step S 8 , through the GUI by dragging and dropping the CT images using a pointing device, such as a mouse, to arrange the CT images in an arrangement that is easily viewable for the user.
  • a pointing device such as a mouse
  • the new display mode is output, and the newly set display mode data is written over the tag data of the DICOM files F CT for the patient M with embedded display mode data and the CT images P CT .
  • the process is returned to Step S 6 .
  • Step S 7 If an answer in Step S 7 is determined to be “NO,” i.e., a request is not made from the client viewer 13 to display the medical images about the patient M, the display mode data is updated, and the process is returned to Step S 7 . Then, the image storage server 12 enters a stand-by mode and waits for a request for displaying the medical images.
  • Medical images captured by modality 9 other than the CT device 9 a are also displayed in accordance with the tag data in the same manner as the image captured by the CT device 9 a , as described above.
  • FIG. 8 illustrates a flow chart of a method for managing and displaying medical images according to another embodiment of the present invention using the system 10 for managing and displaying medical images. Since the system structure of this embodiment is the same as the system structures illustrated in FIGS. 1 and 3 , descriptions on the system structure are omitted. In the following, the arrangement of images captured by multiple modalities is described. In the method for managing and displaying medical images described below, the combination of more than one modality can be realized, i.e., the combination of CT device 9 a , the MR device 9 b , and the CR device 9 c . However, the combination of modalities is not limited to these devices.
  • a DICOM file is generated for CT image data, MR image data, and CR image data, illustrated in FIG. 1 .
  • the controlling unit controls the system to send the DICOM files to the image file receiving unit 21 of the image storage server 12 , illustrated in FIG. 3 , via the LAN 15 and to store the DICOM files in the image file storage unit 22 (Step S 11 ).
  • a user such as a doctor or a nurse, turns on the power to start up the client viewer 13 .
  • the user operates a pointing device (not shown in the drawing), such as a mouse, to request for displaying the medical images about the patient M that is a certain patient.
  • DICOM files including the medical image data, about the patient M is retrieved from the image file storage unit 22 , stored in Step S 11 . These DICOM files are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 . If DICOM files, including the CT image data, MR image data and CR image data, about the patient M are stored at the image file storage unit 22 , these DICOM files are sent to the Web browser of the client viewer 13 . Using the DICOM files sent from the image storage server 12 , the CT images, the MR images, and the CR image of the patient M are displayed on the client viewer 13 screen (Step S 12 ).
  • the user operates the pointing device, i.e., mouse, to organize the CT images, the MR images, and the CR image through the GUI in an easily viewable arrangement.
  • the user By dragging and dropping the CT images, the MR images, and the CR image, the user changes at least one of the image modes, i.e., the screen division, the image segment including the image, whether or not the image is included in a stack, or the order of the image in the stack, or the magnification of the image.
  • the image modes i.e., the screen division, the image segment including the image, whether or not the image is included in a stack, or the order of the image in the stack, or the magnification of the image.
  • FIG. 9 illustrates a sample of a display mode of the CT images, MR images and CR image after the display mode has been changed on the client viewer 13 screen.
  • FIG. 9 illustrates the client viewer 13 screen after the display mode of CT images P CT , MR images P MR , and CR image P CR of the patient M has been changed in Step S 12 such that the user can easily view the CT images, MR images, and CR image.
  • CT images P CT-1 and P CT-2 there are two CT images P CT-1 and P CT-2 , three MR images P MR-1 , P MR-2 , and P MR-3 , and a CR image P CR .
  • the display screen as illustrated in FIG. 9 , is divided into “2 ⁇ 2” segments.
  • the “(1,2)” segment displays the CT images P CT in a stack at a magnification of “0.5.”
  • the “(2,2)” segment of the display screen divided into “2 ⁇ 2” segments displays the MR images P MR in a stack at a magnification of “1.”
  • the “(1,1)” and “(2,1)” segments (“(1,1)-(2,1)”) of the display screen divided into “2 ⁇ 2” segments displays the CR image P CR without using stacking at a magnification of “1.”
  • Step S 13 the user carries out an operation to output the display mode data, such as clicking an output button on the client viewer 13 screen.
  • Outputting the display mode data sets the display mode on the client viewer 13 screen (Step S 13 ).
  • the display mode data on every image is sent from the client viewer 13 to the display mode data receiving unit 25 of the image storage server 12 via the LAN 15 .
  • the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR are the display mode data I.
  • FIG. 10A and FIG. 10B illustrate a sample of the display mode data I as a table.
  • FIG. 10A illustrates after the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR are set as illustrated in FIG. 9 .
  • the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR include the screen division, the image segment including the image, whether or not the image is included in a stack, and the magnification of the image.
  • the display mode data I CT-1 and I CT-2 to conform to CT image P CT-1 and P CT-2 is “2 ⁇ 2, (1,2),S,0.5”. That display mode data I CT-1 and I CT-2 represent that the screen division is “2 ⁇ 2”, the image segment including the CT images is “(1,1)”, the CT images are included a stack, and the magnification is “0.5”, respectively.
  • the display mode data I MR-1 , I MR-2 , and I MR-3 to conform to MR image P MR-1 , P MR-2 , and P MR-3 is “2 ⁇ 2, (2,2),S,1”.
  • That display mode data I MR-1 , I MR-2 , and I MR-3 represent that the screen division is “2 ⁇ 2”, the image segment including the MR images is “(2,2)”, the MR images are included a stack, and the magnification is “1”, respectively.
  • the display mode data I CR to conform to CR image P CR is “2 ⁇ 2, (1,1)-(2,1),0,1”.
  • That display mode data I CR represents that the screen division is “2 ⁇ 2”, the image segment including the CR image is “(1,1)-(2,1)”, the CR image is not included a stack, and the magnification is “1”, respectively.
  • the display mode data may be expressed in the unified form.
  • the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR to conform to CT image P CT-1 , P CT-2 , P MR-1 , P MR-2 , P MR-3 , and P CR is “2 ⁇ 2,CT-(1,2),CT-S,CT-0.5,MR-(2,2),MR-S,MR-1,CR-(1,1)-(2,1),CR-0,CR-1”, As illustrated in FIG.
  • That display mode data I represents that the screen division is “2 ⁇ 2”, the image segment including the CT images is “( 1 , 2 )”, the CT images are included a stack, and the magnification is “0.5”, the image segment including the MR images is “(2,2)”, the MR images are included a stack, and the magnification is “1”, the image segment including the CR image is “(1,1)-(2,1)”, the CR image is not included a stack, and the magnification is “1”, respectively.
  • display mode data I sent from the client viewer 13 , illustrated in FIG. 3 is received by the display mode data receiving unit 25 of the image storage server 12 (Step S 14 ). Then this data is sent to the display mode data embedding unit 26 .
  • the display mode data I, received in Step S 14 is embedded into each DICOM file to generate DICOM files F with embedded display mode data (Step S 15 ).
  • tag and data length are embedded as binary data and tag data is embedded as text data (character string) or binary data.
  • the DICOM files F with embedded display mode data generated at the display mode data embedding unit 26 are stored in the image file storage unit 22 of the image storage server 12 , illustrated in FIG. 3 (Step S 16 ).
  • the image storage server 12 enters a stand-by mode and waits for a request for displaying the medical images.
  • the image storage server 12 determines whether or not a request for displaying the medical images is made from the client viewer 13 (Step S 17 ).
  • Step S 17 If an answer in Step S 17 is determined to be “YES,” i.e., a request is made from the client viewer 13 to display the medical images about the patient M, the DICOM files F for the patient M with embedded display mode about the patient M is retrieved from the image file storage unit 22 , stored in Step S 16 . These DICOM files are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the DICOM files F CT-1 , F CT-2 , F MR-1 , F MR-2 , F MR-3 , and F CR with embedded display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR stored in the image file storage unit 22 respectively
  • the DICOM files F CT-1 , F CT-2 , F MR-1 , F MR-2 , F MR-3 , and F CR are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the CT images P CT-1 , P CT-2 , the MR images P MR-1 , P MR-2 , P MR-3 , and the CR image P CR of the patient M are displayed in accordance with the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR , respectively.
  • the CT images P CT-1 , P CT-2 , P MR-1 , P MR-2 , P MR-3 , and P CR of the patient M are initially displayed on the client viewer 13 screen in a display mode illustrated in FIG. 9 (Step S 18 ).
  • the CT images and the MR images, included in the stack, are sorted by an image number, an image UID (Unique IDentifier), or a preparation time.
  • the user may operate the medical images P CT-1 , P CT-2 , P MR-1 , P MR-2 , P MR-3 , and P CR of the patient M, displayed in Step S 18 , through the GUI by dragging and dropping the medical images using a pointing device, such as a mouse, to arrange the medical images in an arrangement that is easily viewable for the user. Subsequently, the new display mode is output, and the newly set display mode data is written over the tag data of the DICOM files F for the patient M with embedded display mode data and the medical images. Then, the process is returned to Step S 16 .
  • Step S 17 If an answer in Step S 17 is determined to be “NO,” i.e., a request is not made from the client viewer 13 to display the medical images about the patient M, the display mode data is updated, and the process is returned to Step S 17 . Then, the image storage server 12 enters a stand-by mode and waits for a request for displaying the medical images.
  • Medical images captured by multiple modalities other than the CT device 9 a , the MR device 9 b , and the CR device 9 c are also displayed in accordance with the tag information in the same manner as the image captured by the multiple modalities of the CT device 9 a , the MR device 9 b , and the CR device 9 c as described above.
  • the multiple modality viewer may be required to use image data such as computer aided diagnosis or detection (CAD) data to display similar images on the screen of the client viewer 13 or to box off a predetermined image and line up similar images next to the boxed off image.
  • image data such as computer aided diagnosis or detection (CAD) data
  • CAD computer aided diagnosis or detection
  • a dot representing the starting point at the edge of an image for example, the top left corner
  • the dot representing the ending point at the edge of the image for example, the bottom right corner
  • the top left corner and the bottom right corner of the image “(50,50)-(600,600)” are embedded into each DICOM files.
  • the medical image including the top left corner and the bottom right corner of the image “(50,50)-(600,600)” will be displayed such that the top left corner of the image matches the dot coordinate (50,50) on the client viewer 13 screen and the bottom right corner of the image matches the dot coordinate (600,600) on the client viewer 13 screen.
  • the tag data “(50,50)-(600,600), S1” may be embedded to indicate the top left corner and the bottom right corner of the image and indicate that the image is included in a stack.
  • FIG.11 illustrates a sample of the display mode data I as a table.
  • FIG. 11 illustrates the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR , after the display mode for the screen of CT images P CT-1 , P CT-2 , MR images P MR-1 , P MR-2 , P MR-3 , and CR image P CR are set as illustrated in FIG. 9 .
  • the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR include the user who logged in to the network N (user ID), the screen division, the image segment including the image, whether or not the image is included in a stack, and the order of the image in the stack.
  • the display mode data I CT-1 and I CT-2 to conform to CT image P CT-1 and P CT-2 is “A12345, 2 ⁇ 2, (1,2),S,0.5”. That display mode data I CT-1 and I CT-2 represent that the user ID is “A12345”, the screen division is “2 ⁇ 2”, the image segment including the CT images is “(1,1)”, the CT images are included a stack, and the magnification is “0.5”, respectively.
  • the display mode data I MR-1 , I MR-2 , and I MR-3 to conform to CT image P MR-1 , P MR-2 , and P MR-3 is “A12345, 2 ⁇ 2, (2,2),S,1”.
  • That display mode data I MR-1 , I MR-2 , and I MR-3 represent that the user ID is “A12345”, the screen division is “2 ⁇ 2”, the image segment including the MR images is “(2,2)”, the MR images are included a stack, and the magnification is “1”, respectively.
  • the display mode data ICR to conform to CT image P CR is “A12345, 2 ⁇ 2,(1,1)-(2,1),0,1”.
  • That display mode data I CR represents that the user ID is “A12345”, the screen division is “2 ⁇ 2”, the image segment including the CR image is “(1,1)-(2,1)”, the CR image is not included a stack, and the magnification is “1”, respectively.
  • the method for managing and displaying medical images using the system 10 for managing and displaying medical images displays the medical images in an appropriate display mode at the initial settings and thus is capable of improving the working efficiency for the user.
  • image identification numbers according to the categorization of the examination do not have to be managed and the load on the network is reduced.
  • the display mode of the initial display of the medical images can be controlled by the image storage server 12 .
  • the display positions of the medical images can be set for each medical image and various display modes of the medical images may be employed. Since various settings are possible for a medical image, the method may be applied as a display layout preset function.
  • FIGS. 12 and 13 illustrate a system for managing and displaying medical images according to a second embodiment of the present invention.
  • FIG. 12 illustrates the entire system for managing and displaying medical images. Furthermore, the same sign is put to the same composition member as the FIG. 1 , and an explanation is omitted about the composition member of the FIG. 12 .
  • FIGS. 13 is a block diagram illustrating the image storage server 12 A.
  • the image storage server 12 A illustrated in FIG. 13 , includes an associating unit 24 A for associating the image files, including the medical image data, with the display mode data held at least a screen division and an image segment including the medical images.
  • the associating unit 24 A includes, for example, a display mode data storage unit 30 for storing the display mode data.
  • the display mode data storage unit 30 stores in advance the display mode data to display medical images on the screen of the client viewer 13 .
  • the DICOM files F with embedded display mode data is generated by embedding the display mode data into the DICOM files. Furthermore, the same sign is put to the same composition member as the FIG. 3 , and an explanation is omitted about the composition member of the FIG. 13 .
  • the display mode data is embedded into the DICOM files.
  • associating is not limited to embed the display mode data into the DICOM files.
  • FIG. 14 illustrates a sample of the display mode data I as a table.
  • the display mode data storage unit 30 stores a comparison table a display mode data I with a classification of the medical image data.
  • the medical image data is classified by a modality kind, a station's name kind, an AE (Application Entity) title kind, an image matrix kind, or a fusion kind.
  • the display mode data I includes “2 ⁇ 2,CT-(1,1)-(2,2),CT-S,CT-0.5”. That display mode data I represents that the screen division is “2 ⁇ 2”, the CT image segment including the CT images is “(1,1)-(2,2)”, the CT images are included in a stack, and the magnification is “0.5”. If the medical image data, classified by the modality kind, includes, the CT image data, the MR image data, and the CR image data, the display mode data I includes “2 ⁇ 2, CT-(1,2),CT-S,CT-0.5,MR-(2,2),MR-S,MR-1,CR-(1,1)-(2,1),CR-0,CR-1”.
  • That display mode data I represents that the screen division is “2 ⁇ 2”, the CT image segment including the CT images is “(1,2)”, the CT images are included in a stack, the magnification is “0.5”, the MR image segment including the MR images is “(2,2)”, the MR images are included in a stack, the magnification is “1”, the CR image segment including the CR image is “(1,1)-(2,1)”, the CR image is not included in a stack, and the magnification is “1”.
  • the display mode data of these images may be embedded into the DICOM files at the modality 9 .
  • the image storage server 12 A of the system 10 A includes the associating unit 24 A. Then, at the image storage server 12 A, the display mode data is embedded into the each DICOM file in accordance with a comparison table, stored at the display mode data storage unit 30 . Because the image storage server 12 A stores image data, including various kinds of modalities, the display mode can set the arrangement of images captured by multiple modalities.
  • the modality 9 or client viewer 13 may include the associating unit 24 A.
  • the modalities 9 include the CT device 9 a , the MR device 9 b and the CR device 9 c .
  • the modalities 9 are not limited to these devices.
  • a DICOM file is generated for each medical image data, illustrated in FIG. 12 .
  • the controlling unit controls the system to send the DICOM files to the image file receiving unit 21 of the image storage server 12 A, illustrated in FIG. 13 , via the LAN 15 and to store the DICOM files in the image file storage unit 22 (Step S 21 ).
  • the display mode data I compared with the classification of the medical image data, is read from the display mode data storage unit 30 (Step S 22 ).
  • the display mode data storage unit 30 For example, when CT image data, MR image data, and CR image data are stored in the image storage server 12 , “2 ⁇ 2,CT-(1,2),CT-S,CT-0.5,MR-(2,2),MR-S,MR-1,CR-(1,1)-(2,1),CR-0,CR-1”, illustrated in FIG. 14 , is read from the display mode data 30 .
  • the display mode data I is embedded into the DICOM files to generate DICOM files F with embedded display mode data (Step S 23 ).
  • These DICOM files F are stored in the image file storage unit 22 of the image storage server 12 A (Step S 24 ).
  • the DICOM files including two CT image data generate the DICOM files F CT-1 and F CT-2 .
  • the DICOM files including three MR image data generate the DICOM files F MR-1 , F MR-2 , and F MR-3 .
  • the DICOM file including a CR image data generates the DICOM file F CR .
  • the image storage server 12 A enters a stand-by mode and waits for a request for displaying the medical images. At the same time, the image storage server 12 A determines whether or not a request for displaying the medical images is made from the client viewer 13 (Step S 25 ).
  • Step S 25 If an answer in Step S 25 is determined to be “Yes,” i.e., a request is made from the client viewer 13 to display the medical images about the patient M, DICOM files F for the patient M with embedded display mode data about the patient M are retrieved from the image file storage unit 22 , stored in Step S 24 . These DICOM files F are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the DICOM files F CT-1 , F CT-2 , F MR-1 , F MR-2 , F MR-3 , and F CR with embedded display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR stored in the image file storage unit 22 respectively
  • the DICOM files F CT-1 , F CT-2 , F MR-1 , F MR-2 , F MR-3 , and F CR are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the CT images P CT-1 and P CT-2 , the MR images P MR-1 , P MR-2 , and P MR-3 , and the CR image P CR of patient M are initially displayed in accordance with the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR , respectively (Step S 26 ).
  • Step S 25 If an answer in the Step S 25 is determined to be “NO,” i.e., a request is not made from the client viewer 13 to display the medical images about the patient M, the process is returned to Step S 25 . Then, the image storage server 12 A enters a stand-by mode and waits for a request for displaying the medical image.
  • FIG. 16 illustrates a flow chart of a method for man aging and displaying medical images according to another embodiment of the present invention using the system 10 A for managing and displaying medical images. Since the system structure of this embodiment is the same as the system structures illustrated in FIGS. 12 and 13 , description on the system structure are omitted. In the following, the arrangement of images captured by multiple modalities is described.
  • the modalities 9 include the CT device 9 a , the MR device 9 b , and the CR device 9 c . However, the modalities 9 are not limited to these devices.
  • a DICOM file is generated for each medical image data, illustrated in FIG. 12 .
  • the controlling unit controls the system to send the DICOM files to the image file receiving unit 21 of the image storage server 12 A, illustrated in FIG. 13 , via the LAN 15 and to store the DICOM files in the image file storage unit 22 (Step S 31 ).
  • the image storage server 12 A enters a stand-by mode and waits for a request for displaying the medical images. At the same time, the image storage server 12 A determines whether or not a request for displaying the medical images is made from the client viewer 13 (Step S 32 ).
  • Step S 32 If an answer in Step S 32 is determined to be “Yes,” i.e., a request is made from the client viewer 13 to display the medical images about the patient M, the display mode data I, compared with the classification of the medical image data, is read from the display mode data 30 (Step S 33 ). These display mode data I, read in Step S 33 , is embedded into the DICOM files to generate DICOM files F with embedded display mode data. (Step S 34 ).
  • the DICOM files including two CT image data generate the DICOM files F CT-1 and F CT-2 .
  • the DICOM files including three MR image data generate the DICOM files F MR-1 , F MR-2 , and F MR-3 .
  • the DICOM file including a CR image data generates the DICOM file F CR .
  • the DICOM files F with embedded display mode data I, respectively are sent from the Web service unit 23 to the Web browser of the client viewer 13 via the LAN 15 .
  • the CT images P CT-1 and P CT-2 , the MR images P MR-1 , P MR-2 , and P MR-3 , and the CR image P CR of patient M are initially displayed in accordance with the display mode data I CT-1 , I CT-2 , I MR-1 , I MR-2 , I MR-3 , and I CR , respectively (Step S 35 ).
  • Step S 32 If an answer in the Step S 32 is determined to be “NO,” i.e., a request is not made from the client viewer 13 to display the medical images about the patient M, the process is returned to Step S 32 . Then, the image storage server 12 enters a stand-by mode and waits for a request for displaying the medical image.
  • the multiple modality viewer may be required to use image data such as CAD data to display similar images on the screen of the client viewer 13 or to box off a predetermined image and line up similar images next to the boxed off image.
  • image data such as CAD data
  • the dot representing the starting point at the edge of an image for example, the top left corner
  • the dot representing the ending point at the edge of the image for example, the bottom right corner
  • the method for managing and displaying medical images using the system 10 A for managing and displaying medical images displays the medical images in an appropriate display mode at the initial settings and thus is capable of improving the working efficiency for the user.
  • image identification numbers according to the categorization of the examination do not have to be managed and the load on the network is reduced.
  • the display mode of the initial display of the medical images can be controlled by the image storage server 12 A.
  • the display positions of the medical images can be set for each medical image and various display modes of the medical images may be employed. Since various settings are possible for a medical image, the method may be applied as a display layout preset function.

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